Objective: to understand the meaning of the Adult Intensive Care Unit environment of care,
experienced by professionals working in this unit, managers, patients, families and professional
support services, as well as build a theoretical model about the Adult Intensive Care Unit
environment of care. Method: Grounded Theory, both for the collection and for data analysis.
Based on theoretical sampling, we carried out 39 in-depth interviews semi-structured from
three different Adult Intensive Care Units. Results: built up the so-called substantive theory
“Sustaining life in the complex environment of care in the Intensive Care Unit”. It was bounded
by eight categories: “caring and continuously monitoring the patient” and “using appropriate
and differentiated technology” (causal conditions); “Providing a suitable environment” and
“having relatives with concern” (context); “Mediating facilities and difficulties” (intervenienting
conditions); “Organizing the environment and managing the dynamics of the unit” (strategy)
and “finding it difficult to accept and deal with death” (consequences). Conclusion: confirmed
the thesis that “the care environment in the Intensive Care Unit is a living environment, dynamic
and complex that sustains the life of her hospitalized patients”.